How to Set Hydraulic Pump Pressure on 100 Hitachi Excavator？

I have a 120 Hitachi excavator and I want to switch the hydraulic pump capacity from 80 gallons to 60 gallons. How can I do this?

As someone who’s familiar with hydraulic systems, I’m wondering if a hydraulic motor can be used as a substitute for a hydraulic pump. Can you please provide me with a brief explanation of whether this is possible and any limitations or considerations?

The question is asking about the manufacturers or companies that produce hydraulic valves specifically for boom trucks. Boom trucks are specialized vehicles with a hydraulic arm or crane that can be extended or raised for various tasks like lifting heavy objects, construction, or electrical repair work. The hydraulic system, including valves, is a crucial component that powers the operation of the boom. Hydraulic valves control the flow of hydraulic fluid within the system, enabling precise control over the movements of the boom. The question may be geared towards identifying suppliers or understanding the market for these specialized components.

As an engineer, how can I reverse a hydraulic pump? What steps do I need to take to ensure that the pump operates in reverse? Are there any modifications that need to be made to the pump? What tools and equipment do I need to complete this task efficiently and safely?

Why is it important to incorporate a relief valve when utilizing a piston pump? What role does the relief valve play in maintaining system safety and preventing damage? Explore the reasons behind integrating this critical component with a piston pump and understand its significance in ensuring optimal operation.